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Finding the Fourth Proportional to 438,626.06, 656,442.10 and 367,628.86

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Solution

The fourth proportional to 438,626.06, 656,442.10 and 367,628.86 is: 550,188.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,626.06 : 656,442.10 = 367,628.86 : x
  2. Step 2: Convert to fraction form
    438,626.06/656,442.10 = 367,628.86/x
  3. Step 3: Cross multiply
    438,626.06x = 656,442.10 × 367,628.86
  4. Step 4: Simplify right side
    438,626.06x = 241,327,060,879.01
  5. Step 5: Solve for x
    x = 241,327,060,879.01/438,626.06
  6. Step 6: Final answer
    x = 550,188.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.